as in, as with

when a writer gives readers an example, sometimes they write "as in ..." and sometimes "as with ..."

are they interchangeable or they have distinct usages or meanings?

hello,
what differs between "as in ..." and "as with ..." ?

Depends on the context. Paste an example.

I think sometimes one version "fits" better than the other, but I can't think of a hard and fast rule for deciding which one to use right off the top of my head. But yes, semantically they both mean the same thing.